From 9a73a2efb302e008bbff1ba172c7f99e414dc146 Mon Sep 17 00:00:00 2001
From: Colin Goodheart-Smithe <colings86@users.noreply.github.com>
Date: Thu, 22 Dec 2016 13:50:54 +0000
Subject: [PATCH] Fix stackoverflow error on InternalNumericMetricAggregation

---
 .../metrics/InternalNumericMetricsAggregation.java     | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/core/src/main/java/org/elasticsearch/search/aggregations/metrics/InternalNumericMetricsAggregation.java b/core/src/main/java/org/elasticsearch/search/aggregations/metrics/InternalNumericMetricsAggregation.java
index b9442637a6b..010e24346bf 100644
--- a/core/src/main/java/org/elasticsearch/search/aggregations/metrics/InternalNumericMetricsAggregation.java
+++ b/core/src/main/java/org/elasticsearch/search/aggregations/metrics/InternalNumericMetricsAggregation.java
@@ -105,12 +105,18 @@ public abstract class InternalNumericMetricsAggregation extends InternalMetricsA
     }
 
     @Override
-    protected int doHashCode() {
+    public int hashCode() {
         return Objects.hash(format, super.hashCode());
     }
 
     @Override
-    protected boolean doEquals(Object obj) {
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (obj.getClass() != getClass()) {
+            return false;
+        }
         InternalNumericMetricsAggregation other = (InternalNumericMetricsAggregation) obj;
         return super.equals(obj) && 
                 Objects.equals(format, other.format);